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Automated Loudspeaker Rub Detection Using a Multimedia PC
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English
Abstract
A new technique has been developed to automatically detect rub defects in loudspeakers using digital processing. Loudspeakers are tested near resonance with a high level signal. The response is analyzed using an FFT and a unique post processing algorithm. A personal computer equipped with a multimedia sound card is used to generate test signals and to record the responses of loudspeaker drivers. The system is fast, reliable, economical, and inherently immune to background noises.
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Authors
Citation
Miller, T., "Automated Loudspeaker Rub Detection Using a Multimedia PC," SAE Technical Paper 950183, 1995, https://doi.org/10.4271/950183.Also In
References
- Groeper Blanchard Brummet Bailey “A Reliable Method of Loudspeaker Rub and Buzz Testing Using Automated FFT Response and Distortion Techniques” 91st Convention of the Audio Engineering Society 1991
- “Loudspeaker Testing With System One” Audio Precision Applications Note 2 Audio Precision, Inc. 1989
- Toole, Floyd E. Olive, Sean E. “The Perception of Sound Coloration Due to Resonances in Loudspeakers and Other Audio Components” 81st Convention of the Audio Engineering Society 1986